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6-Hi Reversing Rolling Mill
1. Advantages of 6-hi reversible rolling mill
HC type 6Hi reversible single stand cold rolling mill, rolling mill is provided with has a bending and shifting,With uncoiler, entrance&exit coiling machine, thickness tester, laser velocimeter, can realize large tension rolling, ensure a relatively thin Metal strip high speed and stable production.
2. Coiling parameters
2.1 Raw materials
Raw Materials | |
Texture of material | Metal and Alloys |
Material Thickness | Max3.5mm |
Material Width | Max1250mm |
Inside Diameter | 610mm |
Outer Diameter | 900-2100mm |
Material Weight | Max25Ton |
2.2 Finished product
Finished Product Parameters | |
Finished thickness | 0.50-0.15mm |
Coil Width | Max1250mm |
Inside Diameter | Φ610mm |
Outer Diameter | Φ900-2200mm |
Coil Weight | Max25Ton |
3. Main Technical Parameters of the Rolling Mill
Mill specification | Six rolling mill reversible |
Maximum Rolling Pressure | Non - Standard (width, thickness, material properties) |
Rolling Speed | Max1200m/min |
Coiling Tension | Max30Ton |
Mill Speed Precision | 1% |
Tension Precision（FS） | The dynamic fluctuations in the value of less than 4%. Steady state: fluctuations in the value of less than 1.5% |
Bending Force | Non - Standard (width, thickness, material properties) |
Hydraulic Drive System | 12Mpa |
Bending System Pressure | 16Mpa |
AGC System Pressure | 21Mpa |
4.1 Mechanical equipment
No. | Device name | Unit | Quantity | Note |
1 | Uncoiler | Set | 1 | Custom |
2 | Pinch straightener | Set | 1 | Custom |
3 | Entrance coiler | Set | 1 | Custom |
4 | Entrance side platform | Set | 1 | Custom |
5 | Rolling mill housing | Set | 1 | Custom |
6 | Rolling mill drive | Set | 1 | Custom |
7 | Exit side platform | Set | 1 | Custom |
8 | Exit coiler | Set | 1 | Custom |
9 | Rolls | Set | 1 | Custom |
10 | Middle Roll Shifting | Set | 2 | Custom |
11 | Bending and balancing device | Set | 4 | Custom |
12 | Oil removal unit | Set | 2 | Custom |
13 | Tension testing | Set | 2 | Custom |
14 | Turning Roll | Set | 2 | Custom |
15 | Roll changing Device | Set | 1 | Custom |
4.2 Motor, electronic control and instrument system
No. | Device | Unit | Quantity | Specification |
1 | Uncoil Motor | Set | 1 | AC OR DC |
Mill Motor | Set | N | AC OR DC | |
3 | Coil Motor | Set | N | AC OR DC |
4 | (Siemens PLC) | Set | 1 | SIEMENS |
5 | (AGC) | Set | 1 | SIEMENS PLC |
6 | (Gauge) | Set | 1 | AMC |
No. | Device | Unit | Quantity | Specification |
Low pressure hydraulic station | Set | 1 | Custom | |
2 | AGC hydraulic station | Set | 1 | Custom |
Screw-down cylinder | Set | 2 | Custom | |
3 | Process lubrication system | Set | 1 | Custom |
4 | Gear oil lubrication | Set | 1 | Custom |
5 | Oil mist collection & purification | Set | 1 | Custom |
6 | Automatic fire extinguishing device | Set | 1 | Custom |
5. Characteristics of rolling mill
5.1 HC cold rolling mill；
5.2 Positive and negative bending roll；
5.3 Middle Roll Shifting；
5.4 Hydraulic Screw-down；
5.5 Passline Auto Adjusting；
5.6 Constant Tension Control；
5.7 Sectional cooling；
5.8 Auto Change Roll；
5.9 AGC uses high-speed controller SIEMENS FM458 and hydraulic servo system to achieve high accuracy and fast response. With the laser velocimeter, accurate second mass flow AGC control is achieved.
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